By Richard Nelson, managing editor, June 01, 2011
For years, dermatologists suspected that indoor tanning increased the risk of developing melanoma. A study published in the June 2010 issue of Cancer Epidemiology, Biomarkers & Prevention, “Indoor Tanning and Risk of Melanoma: A Case-Control Study in a Highly Exposed Population,” finally confirmed the connection.
The study calculated the association between a history of indoor tanning and the risk of developing melanoma. The resulting odds ratios indicated how many more times likely a person was to develop melanoma given a variety of tanning behaviors than without them. The study found that those who had indoor tanned at all, or fell into the category of “ever use,” were 1.74 times more likely to develop melanoma. The charts below show other factors that increased the likelihood of developing melanoma.